Published February 1, 1982
| Version v1
Journal article
Two-photon decay of the pseudoscalar glueball
Description
We derive two sum rules for the amplitudes for two-photon decays of the pseudoscalar mesons including a glueball. The two-photon decay width of the pseudoscalar glueball can be estimated with inputs of GAMMA(π→2γ), GAMMA(eta→2γ), and GAMMA(eta'→2γ), assuming Ward identities and two other conditions to be useful. If the E(1440) seen in the radiative decay of J/psi is the pseudoscalar glueball, then we obtain GAMMA(E→2γ) = 10 +- 26 keV, where the large error comes mainly from the experimental ambiguity of GAMMA
Additional details
Publishing Information
- Journal Title
- Phys. Rev., D
- Journal Volume
- 25
- Journal Issue
- 3
- Series
- Phys. Rev., D.
- Journal Page Range
- 792-794
- ISSN
- 0556-2821
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 13682309
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- AXIAL-VECTOR CURRENTS; GLUONS; MATRIX ELEMENTS; PHOTONS; PSEUDOSCALAR MESONS; RADIATIVE DECAY; SUM RULES; WARD IDENTITY
- Descriptors DEC
- ALGEBRAIC CURRENTS; BOSONS; CURRENTS; DECAY; ELECTROMAGNETIC PARTICLE DECAY; ELEMENTARY PARTICLES; EQUATIONS; HADRONS; MASSLESS PARTICLES; MESONS; PARTICLE DECAY; POSTULATED PARTICLES; WEAK PARTICLE DECAY